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Beddomeia inflata

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Taxonomy [top]

Kingdom Phylum Class Order Family
ANIMALIA MOLLUSCA GASTROPODA LITTORINIMORPHA HYDROBIIDAE

Scientific Name: Beddomeia inflata
Species Authority: Ponder & Clark, 1993
Taxonomic Notes: It is likely that there are more Beddomeia taxa in Tasmania and the Australian state of Victoria than are currently classified (Ponder et al. 1993).

Assessment Information [top]

Red List Category & Criteria: Vulnerable D2 ver 3.1
Year Published: 2011
Date Assessed: 2011-07-22
Assessor(s): Clark, S.
Reviewer(s): Böhm, M. & Collen, B.
Contributor(s): Dyer, E., Soulsby, A.-M., Whitton, F., McGuinness, S., De Silva, R., Milligan, H.T., Kasthala, G., Herdson, R., Thorley, J., McMillan, K. & Collins, A.
Justification:
Beddomeia inflata has been assessed as Vulnerable under criterion D2 due to its restricted distribution in one location and a range of plausible threats which are present within Tasmania, lead to changes in water quality and have already had a negative effect on other snail populations. The localised distribution of this species makes it especially vulnerable to such threats, so if these do arise in the species' habitat in the future, it may be experiencing significant declines as a consequence. Further survey work is recommended to clarify the distribution of this species.
History:
1996 Vulnerable
1994 Vulnerable (Groombridge 1994)

Geographic Range [top]

Range Description: This species is known from a single location, Heathcote Creek near Upper Castra on the north coast of Tasmania (Ponder et al. 1993).With further survey work this species may be found in other areas nearby (S. Clark pers. comm. 2010). Its extent of occurrence is estimated as approximately 35 km².
Countries:
Native:
Australia (Tasmania)
Range Map: Click here to open the map viewer and explore range.

Population [top]

Population: There is no population information available for this species.
Population Trend: Unknown

Habitat and Ecology [top]

Habitat and Ecology: This species inhabits small streams and creeks in an area of weedy cleared land, and can be found under stones. This species most closely resembles B. tumida and B. wilmotensis, and lives sympatrically with B. fallax (Ponder et al. 1993).
Systems: Freshwater

Threats [top]

Major Threat(s): The 2000-2002 National Land and Water Resources Audit theme assessments found that freshwater snails in Tasmania were being impacted by many threat processes including: changes in water quality due to pesticides and fertilisers; increased sediment loads; loss of riparian vegetation; destruction of small seepages; gravel and rock extraction; and damming of streams especially in headwaters (ANRA 2009). However, it is unknown to what extent these threats are currently impacting upon this species. The localised distribution of this species makes it especially vulnerable to threat processes (Ponder 1996), so if these threats do arise in the future, this species may be experiencing significant declines over a relatively short time period.

Conservation Actions [top]

Conservation Actions: There are no species-specific conservation measures in place for this species, however it was previously assessed as Vulnerable D2 in 1996 (version 2.3), and is classified as Rare under Tasmania's Threatened Species Protection Act 1995 (DPIPWE 2009). In order to maintain the stability of this species’ habitat and water quality, it is advised that not only should the species’ locality be protected, but also the waters upstream, via an appropriate area-based management plan. Further field work may be beneficial to ascertain whether the distribution of this species is wider than is currently known, although this may be unlikely considering the surrounding areas are mainly rural and degraded (Ponder 1996).

Citation: Clark, S. 2011. Beddomeia inflata. The IUCN Red List of Threatened Species. Version 2014.3. <www.iucnredlist.org>. Downloaded on 19 December 2014.
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